Whenever you crank this Contraption, target creature gets +X/+0 until end of turn, where X is the number of creatures you control.

If an opponent searched their library this turn, you may pay rather than pay this spell's mana cost.

Target opponent mills thirteen cards.

If four or more creatures are attacking, you may pay rather than pay this spell's mana cost.

Arrow Volley Trap deals 5 damage divided as you choose among any number of target attacking creatures.

If an opponent had an artifact enter the battlefield under their control this turn, you may pay rather than pay this spell's mana cost.

Create a 4/4 green Beast creature token.

Whenever you crank this Contraption, roll two six-sided dice. This Contraption deals damage to target player or planeswalker equal to the difference between those results.

If a noncreature permanent under your control was destroyed this turn by a spell or ability an opponent controlled, you may pay rather than pay this spell's mana cost.

Create four 1/1 green Snake creature tokens.

Whenever you crank this Contraption, until end of turn, target creature gains "Whenever this creature deals combat damage to a player, you may draw a card. If you do, discard a card."

Whenever you crank this Contraption, target player loses 2 life.

Whenever you crank this Contraption, each time a source you control would deal damage this turn, it deals double that damage instead.

Whenever you crank this Contraption, create two 1/1 blue Faerie Spy creature tokens with flying, haste, and "Whenever this token deals combat damage to a player, draw a card." Exile them at the beginning of the next end step.

Whenever you crank this Contraption, roll two six-sided dice. Create a number of 1/1 red Goblin creature tokens equal to the difference between those results.

Whenever you crank this Contraption, creatures you control get +2/+0 and gain trample until end of turn.

Whenever you crank this Contraption, roll two six-sided dice. This Contraption assembles a number of Contraptions equal to the difference between those results. (To assemble a Contraption, put the top card of your Contraption deck face up onto one of your sprockets.)

Whenever you crank this Contraption, target player mills X cards, where X is the number of creatures you control.

Whenever you crank this Contraption, target creature gets +3/+3 until end of turn.

Whenever you crank this Contraption, creatures target player controls get -1/-1 until end of turn.

If an opponent had two or more lands enter the battlefield under their control this turn, you may pay rather than pay this spell's mana cost.

Destroy two target lands. Lavaball Trap deals 4 damage to each creature.

Whenever you crank this Contraption, target creature gets -1/-1 until end of turn.

If an opponent gained life this turn, you may pay rather than pay this spell's mana cost.

Target player loses 5 life and you gain 5 life.

Whenever you crank this Contraption, gain control of target creature an opponent controls with power less than or equal to the number of creature cards in its controller's graveyard until end of turn. Untap that creature. It gains haste until end of turn.

Whenever you crank this Contraption, until end of turn, target creature becomes an artifact in addition to its other types and gains ": Draw a card."

Whenever you crank this Contraption, put target creature card from an opponent's graveyard onto the battlefield under your control.

Whenever you crank this Contraption, target creature gets +1/+1 and gains lifelink until end of turn.

If an opponent had three or more cards put into their graveyard from anywhere this turn, you may pay rather than pay this spell's mana cost.

Exile target player's graveyard.

Whenever you crank this Contraption, return target creature card from your graveyard to your hand.

If an opponent cast a blue spell this turn, you may pay rather than pay this spell's mana cost.

Change the target of target spell with a single target.

Whenever you crank this Contraption, add . Until end of turn, you don't lose this mana as steps and phases end.

This spell costs less to cast for each attacking creature.

Create a 6/12 colorless Construct artifact creature token with trample. Exile it at the beginning of your next end step.

Whenever you crank this Contraption, destroy target artifact.

Whenever you crank this Contraption, roll two six-sided dice. This Contraption deals damage to target creature equal to the difference between those results.

Whenever you crank this Contraption, until end of turn, target creature gets +1/+2, gains vigilance, and becomes an artifact in addition to its other types.

Whenever you crank this Contraption, tap or untap target creature.

Whenever you crank this Contraption, it assembles a Contraption. (Put the top card of your Contraption deck face up onto one of your sprockets.)